Business Details
Emergency
services
Your Trusted Partner for HVAC Solutions in Atlanta
O'Callaghan Heating and Air Conditioning Heating and Air Conditioning has served Metro Atlanta for over four decades with a commitment to reliability, integrity, and honesty. As a family-owned business spanning three generations, we prioritize customer relationships while delivering top-tier HVAC solutions. Our professionally trained technicians and dedicated customer support team ensure residential and commercial clients receive expert service tailored to their needs.With a focus on quality workmanship and industry-leading equipment, we maintain a reputation for excellence in heating, cooling, and indoor air quality solutions. Our 40+ years of experience, combined with upfront pricing and financing options, position us as a trusted partner for Metro Atlanta's HVAC requirements.
Services
Heating Installation
Air Conditioning Repair
HVAC Maintenance
Indoor Air Quality
Commercial HVAC Systems
System Replacement
Emergency Services
Energy Savings Plans
Highlights and features
- Family-owned business with three generations of HVAC expertise
- Fully licensed and insured technicians serving Metro Atlanta since 1980
- Upfront pricing with no hidden fees for all HVAC services
- Energy Savings Agreements offering 15% repair discounts and priority service
- Certified technicians trained on all major HVAC brands and systems
What people say
Excellent experience
Professional technicians
Knowledgeable staff
Courteous service
Happy with investment
Services
Heating Installation
Our heating installation services cover furnace replacement, new system installation, and efficiency upgrades for residential and commercial properties. Technicians provide expert consultation to select energy-efficient systems that match your space requirements. With proper installation being critical to 80% of system performance, we ensure precise setup of all components including thermostats, ductwork, and ventilation systems. Customers benefit from equipment warranties and free system replacement estimates.
Air Conditioning Repair
We offer comprehensive air conditioning repair services for both residential and commercial cooling systems. Our certified technicians diagnose and fix issues with compressors, refrigerant levels, electrical components, and airflow problems. Regular maintenance prevents costly breakdowns while extending system lifespan. We service all brands and offer emergency repair services with 24/7 availability to maintain comfort during peak summer months in Metro Atlanta.
HVAC Maintenance
Our maintenance programs include seasonal tune-ups for heating and cooling systems to ensure optimal performance year-round. Services cover filter replacement, coil cleaning, refrigerant checks, and electrical component inspections. The Energy Savings Agreement provides priority service, 15% repair discounts, and comprehensive maintenance plans that help reduce energy costs by up to 30% while preventing unexpected system failures.
Indoor Air Quality
We improve indoor air quality through advanced filtration systems, air purifiers, and ventilation solutions. Services include MERV 13+ filter installation, PCO air purification technology, and energy recovery ventilators. Our Reme Halo LED systems eliminate 90% of airborne contaminants including viruses, bacteria, and VOCs. Technicians assess individual needs to recommend solutions that enhance air circulation and reduce allergens in residential and commercial spaces.
Commercial HVAC
Our commercial HVAC services cater to businesses of all sizes with customized heating, cooling, and ventilation solutions. We handle large-scale system installations, preventive maintenance contracts, and emergency repairs for office buildings, retail spaces, and industrial facilities. Energy-efficient upgrades help businesses reduce operational costs while maintaining occupant comfort. Our 24/7 emergency service ensures minimal downtime for critical commercial operations.
Questions
What HVAC services do you offer in Metro Atlanta?
We provide complete HVAC solutions including heating installation, air conditioning repair, system maintenance, indoor air quality improvements, and commercial HVAC services across Metro Atlanta.
Do you offer emergency HVAC services?
Yes, we provide 24/7 emergency HVAC services for urgent heating and cooling issues in both residential and commercial properties.
What financing options are available?
We offer financing plans and Energy Savings Agreements that include 15% repair discounts, priority service, and comprehensive maintenance programs for Metro Atlanta customers.
Are your technicians certified?
All our technicians are fully licensed, insured, and certified to work on all major HVAC brands and systems with ongoing industry training.
How can I improve indoor air quality?
We recommend MERV 13+ filters, PCO air purification systems like Reme Halo LED, and energy recovery ventilators to enhance indoor air quality in homes and businesses.
What areas do you serve?
We serve all Metro Atlanta counties including Fulton, Dekalb, Cobb, Gwinnett, Clayton, Henry, Douglas, Fayette, and Coweta.
